Huu Lien - still a treasure trove*

*Updated after publication of Paracercion ambiguum

On October 19 I was all day at Huu Lien and as we know I ran into beautiful Coeliccia galbina. Thus it was a memorable day. Most other goodies were there too. On the gomphid front Labrogomhus torvus was still flying. Not surprising, as we saw it into December last year. Ceriagrion nipponicum, Vestalaria miao, Atrocalopteryx atrocyana and A. auco (the newly described endemic), Paracercion ambiguum, Prodasineura croconota, Gynacantha japonica and many more. Here are a few additional photos.

Price for rarity is likely deserved by Atrocalopteryx auco. Although its brother A. atrocyana is common all over Huu Lien, I saw only a single male of this species.

But what I did not expect was a great many Prodasineura croconota still flying. Last year I had not seen them and only discovered them in spring this year. But apparently I just overlooked them last autumn. Quite a few tandems were active. This is of course a female.

And this a tandem, with the exquisite male easily identified

Just like last year, Gynacantha japonica was active at dusk, hawking over the paddies. Until now I have not found this species anywhere else. This is a male.

These are the distinctive appendages in ventral view, about 4 times the length of the epiproct

Recognizable by the almost absent lower appendages and the brown crescent along the wing tips: male Vestalaria miao.

And there he is! The Paracercion ambiguum. As usual common along the stream from the reservoir.